According to comScore, as reported by Reuters, the social giant US user numbers are shaking in May from April and March. Last month, Facebook attracted 158.01 million unique visitors in the United States, edging lower from 158.69 million in April and 158.93 million in March. Facebook is continuously keep on working on new features, including the “Timeline” interface rolled out this year and even more with the deal in which it acquire Instagram.
comScore previously said Facebook had 157.22 million visitors in May 2011, means Wednesday’s data year-on-year increase of just 0.5 percent. The users spent an average of 380.8 minutes, or more than six hours, on the site in May this year, up slightly from 378.9 minutes in April. In April last year, as measured under comScore’s old techniques, users spent 374.9 minutes on the site.